Bur-conveyer attachment for wool-cards



APPLICATION FILED MAR. 22, 1919.

Patented Aug. 31, 1920.

2 SHEETS-SHEET I.

C. E. JEWETT.

BUR CONVEYER ATTACHMENTFOR WOOL CARDS.

APPLICATION FILED MAR. 22, 1919.

2 SHEETS-SHEET 2.

I 1,351,653. Patented Aug. 31, 1920.

v barrel) STATEFF CHARLES EDWARD JEWETT, OF NOR H ANDOVER, MAssA'cHUs 'i'T's.

- BUR-CONVEYEB. ATTACHMENTFOR WOQL-CARDS.

1 To all whom it may com/61%.:

7 Be it known that 1,"G1-1A'Rmis 'E. Jnwiir'r,

a citizen of the United States, residing at North Andover, in the county of Essex and State of Massachusetts, have invented certain new and useful improvements in Bur-' Conveyer Attachments ior-lVooL-Oards of which the following is a specification,

7 This invention relates to, machines for carding wool. It is more particularly useful as an attachment for whatare knownas worsted cards. In the operation of worsted cardsand other cards havingrevqluble carding rolls, such as dofi'ers and strippers, it is desirable to remove what are. known as-burs and other material which should not go into the yarn.

One method of removing burs by the use of what are knownv as bur rolls, which usually have radial blades and which revolve in such a direction and in; such proximity to the cardrolls as to beat burs out from the fiber. Flat sheet metal pans arejusually usedto catch such burs. Such pans are supposed ,to be cleaned at regular intervals manually by the operator; It the operator forgets such cleaning, the burs and other waste pile up and after'a time are sucked in or fall into the fleece and cause bunches in the roving and'yarn.

Many attempts have been made to not only catch but to automatically ,carry away by conveyer belts, air blasts, etc., but on account of the peculiar oily and'gritt'y character of the material,- peculiar difficulties must be overcome. V Not only for th1sreasonbut because a card, especially a worsted card, is a complicated machine the rolls of which mustbe removed from time ,to'time for stripping and grinding, any device for the purpose intended must be arranged soas not to be in p the way and so as to be capable of removal with little d'ifliculty.

The purpose ofmyinventionis to provide a positive-action, simple, compact device, which 1s easlly'removable and which will not be in the way tion of the machine.

of'theproper opera Inthe drawings, Figureflis a partly dia grammatic plan view of part of aworsted card of well known type'equipped with my attachment; Fig. 2 is an elevation of Fig. 1

looking at the driving end of my attachment, some parts being broken away to troughs.

F or Gr I locate a revoluble screw conveyer,

section.

I Specification ofLetters Patent. *Pat nted Aug, 31,-192Q Application filed March 22, 1919. fs riaiivokzsezea I showother parts beyond. Fig. 3 is an enlarged, perspectlvevlew of a'bracket and bearmgjat thedriving end of myattachment. Fig. 4c is. an enlarged elevation of form of conveyer. 8 is an enlarged end view of my preferredform of bearing for -thedel1ve1y1end. Fig. 9 is a detail.

In the drawings, A represents the frame of a worsted card. 0 and B are carding rolls, shown as lickerin and divider, and

D and are revoluble bur rolls having radial beater blades, all of well known type. The drawing indicatesv a card havingtwo bur rolls, but I m'ayuse my attachment on cards havingone or moresuch bur rolls. 7

1 Instead of afiat pan, I provide for each bur roll a substantially 'u -shaped trough, such as F or Gr, which extends across the card proximate the bur roll in position to receive the bins knocked-out by it.

lVhat I will .call the driving end ofthe trough at 8 or 9 maybe closed or open, preferably open. The opposite or deliveryend or 21preferably extendsbeyond the other side ofthe card so that itcan deliver into a spout, such as 13 or 23, under which a V basket L or boX can be placed. .,A single such burs andwaste from the-card, such as basket can receive the material from both Extending through: each trough such -H or K.

'Asshown in Figs. 1, 2, 3, 4 and 5, eaich i conveyer consists substantially of a Icentral shaft 14 which extends through the trough and beyondlit at the driving end and which carries a thread15,preferably of a Hat cross Atitsdriving end eachshaft is carried in a fastened .to a bracket such as 18,

hearing 16 which, by a bolt'l'i, is:

screw conve'y erslrH and K supported in dif- 'ferent" ways. 1K is ;carriede in bearing 26 detachablyattachedto bracket 28'by a bolt 27, while H, as shown indeta ilin Fig.8,

rests in a V-shaped or U-shaped openbearing member 36,'clearly shown'in Fig. 8, at-

tached to the inside of trough G near its delivery-end 11 and to a suitable bracket or r I r i00 n a lshow the delivery ends of my v such an open bearing keeps the delivery end a suitable hook steady find does not obstruct the delivery of v i the trough.

able means and can readily be removed as the conveyers are removed. V

It, is manifest that any other surtabledr1ving means for the screwco'nveyers may be used, but I prefer to have them driven at a"re1atively slow speed from any of the slow'running card rolls;

' In Fig. 5, I showmy preferred: form of screw conveyer having a-.shaft or core 14 and flat thread 15. I may, however, use

the construction shown in Fig. 6, wherein -;the*core 44 is of sufficient length only to form the bearing, while the flat thread 45 is open the rest of its length. I may use also a screw conveyer of the corloscrew type,-such as shown'in Fig. 7, having a short core or bearing 54 and a round thread I prefer to use a metallicltrough and a metallic screw conveyor, v as the peculiar oily and gritty character of burs quickly give them an excellent polishwhereby there is little' frictional resistance and the burs are readily carried along and delivered. Each screw' conveyer is preferably driven at a slow speed so as to crawl.

I prefer to arrange the troughs and screw Iconveyers so that by unloosening a few bolts' or screws they can be readily lifted out or, in the case of the conveyer, so that lay removing a collar, such as 19, it can be I pulled out of its bearing and removed;

I'find, that in order to overcome the tendency of burs from some" grades of w'oolto cling to the screw conveyer and to be carried around-thereby without advancing, it is desirable to introduce a res stance member attached lengthwise of the trough. In

connection with trough G, as shown. in Figs.

1 and 8, such a resistance member 47 is shown as a strip which may be of wood, 'metal or other suitable material, attached to trough G and extending lengthwise thereon. This should be on the side of the screw 'conveyer opposite from the bur roll, but

might beoneither side, and may extend the full length of the 'conveyer or, preferably, part of its length. This resistance member overcomes any tendency of the stock to revolve withthe conveyenand causes to move steadily towardthe delivery end of As shownrinlFig. 9,-ithis resistance member may be, instead oi a strip, a seriesof pins or teeth which rake toward the delivery end and which may conveniently beinade of Garnett Wire I claim:

1. The combination in a'ca'rd'having revoluble carding rolls anda revoluble bur roll for'beating' burs from "one of such rolls, of a metallic trough having an open end and extending across such card proximate 57, as shown.

fsaid bur roll in position to receive the burs, and a 'revoluble metallic screw conveyerwh1ch extends through such trough and rests at its open end therein adapted to convey burs through the trough and to deliver them from the open end thereof, bearings which carry the other end of the screw conveyer, and driving means for said conveyer proximate said bearings which connect it,

with a relatively slowmoving card. j

2. The combination in a card having revoluble carding rolls and a revoluble bur roll for beating burs from one of such rolls, of a trough having an open end and extending across such card proximate said bur roll in position to receive the burs, and a revoluble screw conveyer which extends through such trough and rests at its open end therein adapted to convey burs through the trough and to'de'liver them from the open end thereof, bearings which carry the other end of the screw conveyer', and driving means for said conveyer proximate said bearings. l

3. The combination in a card having revoluble carding rollsv and a revoluble bur roll for beating burs from one of such rolls,

of a U-shaped trough having an open end and extending; across such card proximate saidbur roll'in pos tion to'receive the burs,

and a revoluble screw conveyer which extends through such trough adaptedto convey burs through the trough and to deliver them from the open end thereoii;

4. The combination in a card having revpart of said.

V olublecarding rolls and a revoluble bur roll forbeating burs from one of such rolls, of r a. trough having an open end-andextend ing across such card proximate said bur-roll in-position'to receive the burs, and a, revoluble screw conveyer which extends through such trough adapted to convey burs through the trough and to deliver them from the open end thereof. I

5. The combination lll it card having revoluble carding rolls and a revoluble bur'roll for beating burs from one ofsuch'rollgof a trough extending across such card proximate said bur roll in; position to receive the burs, and a revolublescrew conveyer which extends through such trough adapted to end of the screw conveyer, drlvmgmeans convey burs through the trough.

v 6. The combination in a worsted card having revoluble carding rolls and one or more revoluble bur rolls for beating the burs from such rolls, of troughs eachexten'ding across such card approximate a bur roll in position to receive the burs therefrom, and revoluble screw conveyers each of which extends through-one of such troughs and is adapted "to convey burs therethrough,v together with'one or more spouts,one .at the delivery end of each trough as described.

7. The combination in a card having revoluble carding rolls and a revoluble burroll for beating burs from one of such rolls, of a trough having an openend and extending across 'such card proximate saidbur roll in; position to recelve the burs, and a revoluble screw conveyer which extends through such trough adapted to convey burs through the trough and to deliver them from the open end thereof,'together with a resistance memher which extends lengthwlse of such trough.

8. The combination in a card having rev-- olubie carding rolls and a revoluble bur roll for beating burs from one of such rolls, of a trough having an open end with a V-- shaped open bearing therein and extending across such card proxlmate said bur roll in position to receive the burs, and a revoluble screw conveyerwhich extends through such trough, one end resting on suchopen bearv ing adapted to convey burs through the trough and. to deliver them from the open end thereof, bearings which carry the other 7 veyer.

V 9; The combination in a card having revfor beating burs from one'of such rolls, of a trough'havlng an open end and extend ng across such card proximate'said bur roll in position to receive the burs, and a revoluble V screw conveyer having an open thread which ."oluble carding rolls and a revolubleburroll extends through such trough adapted to convey burs through the trough and to deliver them from the open end thereof, together with" a resistance member which extends lengthwise of such trough.

l0. The'combination in a card having rev- 'oluble' carding rolls and a revoluble bur roll for beating burs from one of such rolls, of

a trough having an'o pen'end and extending screw conveyer having an open thread which across, such card proximate said bur roll in position to receivethe burs, and a revoluble'. n

extends through such trough adapted to convey burs through the trough and to deliver the open end thereof together,

them from I with a res1stance member having a series of teeth which raketoward the open end of the trough and wh1ch extends lengthwise of such trough.

In testimony whereof Ihave affixed 'my signature.

CHARLES ED A D JEWET'r. 

